Evergreen Your Home
With Maine’s Comfort & Efficiency Experts

BOOK YOUR FREE CONSULT

Evergreen Your Home
With Maine’s Comfort & Efficiency Experts

BOOK YOUR FREE CONSULT
couple playing with dog in backyard of their home

Creating a Comfortable Nest for Baby

How Clare & Tim Upgraded Their Comfort with New Attic…

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Photography by Molly Haley, mollyhaley.com

From Damp to Dry — A Westbrook Basement Transformed

Basement Waterproofing in Westbrook, Maine: Heather’s Project with Evergreen Home…

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couple smiling in front of their white house

From Cold and Leaky to Warm and Efficient

How Jay and Rebecca Prioritized Comfort, Efficiency, and Their Home’s…

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Linda and Sam standing together in their garden, smiling in front of their home after completing an exterior home improvement project

A Warm, Comfortable Home, Ten Years On

How Sam and Linda Transformed Their Maine Home with Upgraded…

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insulation

Hidden insulation problems in a newer Belfast home

How a Belfast homeowner uncovered attic insulation issues and saved…

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Our Services

Energy Audits

Energy Audits

Find out once and for all what’s creating issues in your home and create a roadmap to better comfort, health, and energy efficiency.

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Insulation

Insulation

Warm in winter, cool in summer, efficient all year long—upgrade your home’s insulation where it matters most for real, lasting comfort.

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Basement Waterproofing

Basement Waterproofing

Keep moisture out of your home for good with healthy, radon-safe solutions, including waterproofing and encapsulation.

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Rebates, Incentives & Financing

Rebates, Tax Credits & Financing

Save thousands in Efficiency Maine rebates and other incentives. Then finance the balance with flexible, affordable loan options.

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Evergreen Home Performance: Maine’s Energy Audit, Insulation & Basement Waterproofing Experts

  • A local Maine business with almost 2 decades of experience
  • 4,500 Maine homes improved across nearly 200 communities
  • The leading contractor for Efficiency Maine insulation rebates
  • More BPI-certified staff than any other Maine business

Since 2006, we’ve worked with thousands of homeowners from Portland to Rockland and throughout Southern and Coastal Maine to make lasting improvements—using building science and a deep knowledge of how Maine homes work. When you’re ready to make your home more comfortable, healthy, and efficient—we’re here to listen… and guide you on your journey.

LEARN MORE ABOUT EVERGREEN

Available Now: Record-High Incentives

  • Up to $8,000 in Efficiency Maine rebates
  • Financing as low as $50 a month

This is as good as we’ve ever seen it here in Maine, and we can’t guarantee it will be around for long—don’t miss out on this once-in-a-lifetime opportunity!

LEARN MORE ABOUT INCENTIVES

Since 2006, We’ve Helped Thousands Of Maine Homeowners With Insulation And Basement Waterproofing

service area map - southern and coastal maine

Our Latest Articles

Why thermal imaging works best during Maine winters

Thermal imaging is one of the diagnostic tools we use during …

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House humidity in winter: What should your home’s humidity be?

If you’ve noticed foggy windows, musty closets, or cold rooms …

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Evergreen named Maine’s top contractor for insulation rebates in 2025

It’s official! Efficiency Maine named Evergreen Home …

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Don’t wait—book your free consult now and lock in today’s record-high rebates.

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I was very impressed by the professionalism of this company and the workers. Brian R. was very prompt in replying to my questions; the crew was meticulous in all parts of the work and attentive to the safety aspects concerning Covid; and Brian was extremely thorough in the final inspection. My attic is now snug and warm and I've noticed that the second floor is warmer as well.

Julia S.

Rockland

"Working with Evergreen from start to finish was a great experience." See what our customers have to say about their experience with Evergreen Home Performance. 

Jeff L.

Last week, my oil company asked if we were using some other kind of fuel because our usage was so much less than they had expected We are very happy with the results; the house is much more comfortable

Steve T.

St. George

I highly recommend Evergreen! 1st, I had a home efficiency inspection (that was free) & Bryan P. was great! He took the time needed, asked & listened to what I thought were priorities, explained clearly what he thought were priorities & why, then gave me numerous options. No pressure whatsoever. Then I had my attic sealed & insulated as the 1st step & Bryan came along on day 1 to introduce everyone & make sure we were all on the same page. Bruce's team (inc. Kelsey & Roland) did the work - they were exceptional!!

Melissa M.

Kennebunk

The team members were very professional, worked very hard, paid very close attention to detail and cleaned up meticulously every day. I really appreciated the care they took knowing the smallest details were going to make a big difference to our heating bills. Thank you!

Pam B.

Brunswick

In the final stages of selling our home, and with a closing date set, an inspection came across an unanticipated issue in our attic. We quickly called in contractors, but nobody was able to identify the source of the problem. Then we thought of Evergreen. Brian Robinson was on site the next morning and immediately identified the source (a faulty roofing job completed three years earlier which had effectively sealed up portions of the ridge vent and restricted air flow - not easily visible with a quick inspection).

Robin McIntosh

Camden

Thorough, smart, informative, integrated, and communicative -- that's how my experience was with Evergreen even with the covid interruption midstream. The team picked up where they left off, insulated basement and air sealed attic and knee wall in 100' temps under the eaves! This business group was a pleasure to work with.

Karen W.

Gray

Update 12/2018: Evergreen has completed Phase II of my house (insulating and installing air/moisture barrier on exterior walls, replacing old windows) and now that heating season is upon us, the difference is astonishing. The house is tight as a drum and so easy to keep warm. Worth every penny. Thank you all! Working with Evergreen was a positive experience from start (no charge energy audit) to finish (a MUCH more comfortable home). Brian Robinson spent a lot of time with me on the audit, explaining clearly what he was finding in my ca.

Rebekah W.

Rockport

Thanks Evergreen Home Performance for helping to make our home more efficient. Many thanks as well to Bryan for the initial walk through and recommendations to make our home more efficient and to Dave, Roland, and Jacob for a job that was done professionally and courteous.  We were amazed at the level of efficiency and everyday they made sure to protect our floors, carpets, and furniture. We had daily discussions with Dave about progress and what was being done and where they were at in the project.

Carol Fink

Working with Evergreen was a dream! Professional, knowledgeable, and super clean work. Communication was fast and service impeccable. The bedroom floors in our 1960's split ranch will be warm with the new insulation between them and the garage. Bring on the snow! (not really, but sort of)

Jess Dee Proctor

I used to spend winters in the bathtub because my house was so cold. This was my first winter roaming around my whole house comfortably. This even led me to decorate a little. My heating oil usage has been reduced by over a quarter: I rarely have to boost the thermostat because the temp stays at a constant. The Efficiency Maine rebates, together with the energy savings, make it affordable for me to pay for the loan I took out to finance the project. I do not worry about my pipes freezing.

Claire Helene Bevan

Camden

Awesome company. It was a few years ago that they did the audit and then we commissioned them to do the work. We subsequently sold our house and moved to South Africa, but their level of service and expertise will live on.

Odette Brown

I made the mistake of NOT hiring this company last year when I bought and renovated my home. I have brought them in now and what a difference. This group knows what they are doing. They take a complete look at everything and believe they can make your home more energy efficient. They are very professional in the way they approach problems and solutions. And they find ways to save me money. Don't bother with anyone else. Bring Evergreen in before you do anything. Let them assess your issues and give you the right solutions.

Shaw

Owls Head

I have always been impressed by the high level of service, quality of work, and excellent follow-through provided by Evergreen Home Performance in the three projects that they completed at the Wells Reserve at Laudholm over the past several years.

Paul D.

Wells

Evergreen removed and replaced the insulation in my attic. They did a great job!, Crew was excellent, and the whole thing went smoothly, and the attic was NOT easy to get into or work in, so kudos to some hard work done well!

Joel A.

Portland

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Portland Buy Local
Efficiency Maine
EPA Lead-Safe Certified
Building Performance Association
BPI Certified

190 Riverside St, #2A,
Portland, ME 04103

315 Main Street, #205,
Rockland, ME 04841

207-358-3706

info@evergreenyourhome.com